EP3695595B1 - Driving video recorder for automotive - Google Patents

Driving video recorder for automotive Download PDF

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Publication number
EP3695595B1
EP3695595B1 EP18782452.9A EP18782452A EP3695595B1 EP 3695595 B1 EP3695595 B1 EP 3695595B1 EP 18782452 A EP18782452 A EP 18782452A EP 3695595 B1 EP3695595 B1 EP 3695595B1
Authority
EP
European Patent Office
Prior art keywords
housing
video recorder
driving video
middle plane
vertical middle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18782452.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3695595A1 (en
Inventor
Shichun LIU
Chao SHANG
Pei YANG
Xuejun Zhang
Huihua CHEN
Chuanwen JIANG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lumileds Holding BV
Original Assignee
Lumileds Holding BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lumileds Holding BV filed Critical Lumileds Holding BV
Publication of EP3695595A1 publication Critical patent/EP3695595A1/en
Application granted granted Critical
Publication of EP3695595B1 publication Critical patent/EP3695595B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/55—Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/45—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/51—Housings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/52—Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body

Definitions

  • the present disclosure relates to a field of a video recorder, specifically to a driving video recorder for an automotive.
  • Driving video recorders have become increasingly popular in our daily life.
  • components of the driving video recorder such as a digital signal processor (DSP) for processing video signals, a sensor (e.g. a CMOS sensor), a memory component and a WIFI module, are usually integrated within a very limited space.
  • DSP digital signal processor
  • a sensor e.g. a CMOS sensor
  • a memory component e.g. a CMOS sensor
  • WIFI module e.g. a wireless fidelity module
  • the existing driving video recorders typically adopt a natural convection cooling system, heat generated from these components is hard to radiate outwards. The thermal aggregation effect usually results in sorts of failures of the driving video recorder, thereby deteriorating the stability and reliability of the driving video recorder.
  • US20130044189A1 discloses a camera with multiple imaging units proposing a fan for uniformizing the temperatures of the multiple imaging units.
  • WO2012082127A1 discloses an Imaging System for Immersive Surveillance comprising an array of cameras, each of which is disposed to image a respective portion of a wide-area scene at a respective distance, the array of cameras providing a spatially continuous view of the entire wide-area scene at a substantially constant spatial resolution throughout the entire scene.
  • EP1748640A discloses a camera using a fan for cooling an electronic board, intaking ambient air via an air inlet and discharging the air via an air outlet.
  • CN201937729U discloses an intelligent high-speed multi-light-source integral video monitoring equipment, which belongs to a monitoring camera of security protection equipment and comprises a machine case of a camera, an electronic cassette mechanism and a spherical machine body.
  • CN 206433066 U discloses a panoramic camera and a panoramic camera supporting structure.
  • EP1748640A1 discloses a camera apparatus including a base; an outer case assembled on the base; an inner case assembled in the outer case; a supporting member assembled in the inner case; a camera and a board assembled in the supporting member; a cooling fan for cooling the board.
  • EP3457208A1 discloses a device for recording a three-dimensional environment, comprising a preferably spherical housing; a plurality of cameras, arranged to and projecting outwardly from the housing with overlapping fields of view; and a plurality of light emitting diodes, arranged to and projecting outwardly from the housing.
  • the existing driving video recorders for an automotive usually have only one lens or only one set of lenses for image capturing arranged at one side thereof, which causes the driving video recorder to tilt easily and have a limited field of view only.
  • the object of the present disclosure is to provide a driving video recorder for an automotive improving on one or more of system stability, reliability, and functionality.
  • a driving video recorder for an automotive which includes: a housing having a side wall, a top wall with an air outlet, and a bottom wall with an air inlet; a first electric fan arranged on the bottom wall above the air inlet and in a vertical middle plane of the housing for directing outside air into the housing; two sets of lenses for image capturing arranged at the side wall and positioned symmetrically on both sides of the vertical middle plane of the housing; and heat generating electrical components provided within the housing.
  • the driving video recorder has an active-cooling system, that is, the first electric fan is arranged on the bottom wall above the air inlet and in a vertical middle plane of the housing for directing outside air into the housing, compared with a conventional natural convection cooling system, heat generated from the heat generating components is easily forced out from the housing of the driving video recorder.
  • the system temperature is therefore effectively reduced to a lower temperature and the system performance becomes better, thereby improving the stability and reliability.
  • the driving video recorder for an automotive has two sets of lenses for image capturing oppositely arranged at the side wall and positioned symmetrically on both sides of the vertical middle plane of the housing; wherein the two sets of lenses have an optical axis perpendicular to the vertical middle plane; compared with an existing driving video recorder having only one lens or only one set of lenses for image capturing arranged at one side thereof, the driving video recorder according to the present disclosure is not easy to tilt and provides a wider field of view.
  • the heat generating electrical components are symmetrically distributed on both sides of the vertical middle plane thereby providing an optimized spatial relationship of the heat generating components to the cooling chimney.
  • a second electric fan is arranged at the top wall below the air outlet for forcing hot air from the heat generating electrical components out of the housing.
  • This second electric fan together with the first electric fan collaboratively forms a chimney effect, which further improves the system cooling effectiveness.
  • the second electric fan is aligned with the first electric fan along the vertical middle plane of the housing.
  • the housing is a sphere-shaped housing.
  • the two lenses are panoramic fisheye lenses thereby providing an even all around 360° panoramic view.
  • the heat generating electrical components are sensors, one or more digital signal processors, and memory components.
  • At least one of the heat generating electrical components is provided with a heat sink thereby allowing an enhanced cooling of critical components, i.e., components generating strong heat or being particularly sensitive to overheating.
  • the heat sink is provided with fins for radiating heat.
  • the fins extend in a direction perpendicular to the vertical middle plane providing an optimized heat transfer from the heat generating components via the heat sink to the cooling chimney.
  • the housing with the side wall, the top wall and the bottom wall is integrally injection molded.
  • the side wall, the top wall and the bottom wall of the housing are formed separately and then assembled into the housing.
  • the driving video recorder further comprises a WiFi module.
  • a driving video recorder 1 for an automotive includes: a housing 11 having a side wall 111, a top wall 112 with an air outlet 1121, and a bottom wall 113 with an air inlet 1131; a first electric fan 12 arranged on the bottom wall 113 above the air inlet 1131 and in a vertical middle plane 6 of the housing 11 for directing outside air into the housing 11; two sets of lenses 13 for image capturing arranged at the side wall 111 and positioned symmetrically on both sides of the vertical middle plane 6 of the housing 11; and heat generating electrical components 14 provided within the housing 11.
  • the housing 11 is a sphere-shaped housing.
  • the housing 11 with the side wall 111, the top wall 112 and the bottom wall 113 is integrally injection molded; or otherwise, the side wall 111, the top wall 112 and the bottom wall 113 of the housing 11 are formed separately and then assembled into the housing 11.
  • the driving video recorder 1 for the automotive is also provided with a second electric fan 15, which is arranged at the top wall 112 below the air outlet 1121 for forcing hot air from the heat generating electrical components 14 out of the housing 11.
  • This second electric fan 15 together with the first electric fan 12 collaboratively forms a chimney effect to control the air flow from bottom to up to form a chimney effect, which further improves the system cooling effectiveness.
  • the second electric fan 15 is aligned with the first electric fan 12 along the vertical middle plane 6 of the housing 11 to easily control the air flow from bottom to top along the heat generating electrical components 14.
  • the two sets of lenses 13 are panoramic fisheye lenses for capturing panoramic video images.
  • the two sets of lenses 13 may be oppositely arranged at the side wall 111.
  • the two sets of lenses 13 have an optical axis 7 perpendicular to the vertical middle plane 6.
  • the heat generating electrical components 14 are symmetrically distributed on both sides of the vertical middle plane 6. Such arrangement has the advantages of rendering the whole driving video recorder 1 upright and easily balanced and not easy to tilt. As well it optimizes the flow of cooling air within the cooling chimney along the heat generating electrical components 14.
  • the heat generating electrical components 14 of some of these kinds will be paired with the lenses 13, i.e., will be present in an even number, there might also be kinds occurring in an uneven number only.
  • such symmetrical distribution in general shall mean any distribution of the heat generating electrical components 14 to the two sides of the vertical middle plane 6 resulting in the amount of heat generated on each side of the vertical middle plane 6 to be about the same as such amount generated on the other side of such vertical middle plane 6.
  • such symmetrical distribution of the heat generating electrical components 14 refers in general to a symmetrical distribution of the heat generated.
  • At least one of the heat generating electrical components 14 is provided with a heat sink 144, and the heat sink 144 preferably is provided with fins for radiating heat effectively.
  • the fins extend in a direction perpendicular to the vertical middle plane 6 for enlarging a contact area with the cooling air.
  • the driving video recorder 1 further includes: a WiFi module 145 allowing for WiFi communication and enabling e.g. a smart phone control; and a PCB 150 for integrating and coupling electronics.
  • a WiFi module 145 allowing for WiFi communication and enabling e.g. a smart phone control
  • a PCB 150 for integrating and coupling electronics.
  • the driving video recorder 1 is suspended or supported in the automotive and is activated with the startup of the automotive.
  • the two sets of lenses 13, oppositely arranged at the side wall 111, start to capture images while the first electric fan 12 and the second electric fan 15 start to turn to force the heat generated from the heat generating electrical components 14 outwards.
  • arrow 8 shows the inflow direction of the cool air
  • arrow 9 shows the outflow direction of the hot air
  • arrow 5 shows the flow direction of the cooling air in the housing 11.
  • the cooling air flows from the arrow 8 to the arrow 9 via the arrow 5 in sequence.
  • a material of the housing 11 may be PMMA (acrylic), PC (polycarbonate) or ABS (acrylonitrile butadiene styrene).
  • the driving video recorder 1 of the present disclosure has an active-cooling system, that is, the first electric fan 12 is arranged on the bottom wall 113 above the air inlet 1131 and in the vertical middle plane 6 of the housing 11 for directing outside air into the housing 11, compared with a conventional natural convection cooling system, heat generated from the heat generating components 14 is easily forced out from the housing 11 of the driving video recorder 1.
  • the system temperature is therefore effectively reduced to a lower temperature and the system performance becomes better, thereby improving the stability and reliability.
  • the driving video recorder 1 for an automotive according to the disclosure has two sets of lenses 13 for image capturing arranged at the side wall 111 and positioned symmetrically on both sides of the vertical middle plane 6 of the housing 11, compared with an existing driving video recorder having only one lens or only one set of lenses for image capturing arranged at one side thereof, the driving video recorder 1 according to the present disclosure is not easy to tilt and has wider field of view.
  • the word “comprising” does not exclude the presence of elements or steps not listed in a claim or in the description.
  • the word “a” or “an” preceding an element does not exclude the presence of a plurality of such elements.
  • several of these units can be embodied by one and the same item of hardware or software.
  • the usage of the words first, second and third, et cetera does not indicate any ordering. These words are to be interpreted as names.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Human Computer Interaction (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Studio Devices (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)
  • Cameras In General (AREA)
  • Stereoscopic And Panoramic Photography (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)
EP18782452.9A 2017-10-13 2018-10-08 Driving video recorder for automotive Active EP3695595B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN2017106018 2017-10-13
EP17200538 2017-11-08
PCT/EP2018/077291 WO2019072750A1 (en) 2017-10-13 2018-10-08 DRIVING VIDEO RECORDER FOR AUTOMOBILE

Publications (2)

Publication Number Publication Date
EP3695595A1 EP3695595A1 (en) 2020-08-19
EP3695595B1 true EP3695595B1 (en) 2023-09-06

Family

ID=63762549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18782452.9A Active EP3695595B1 (en) 2017-10-13 2018-10-08 Driving video recorder for automotive

Country Status (5)

Country Link
US (1) US11720001B2 (zh)
EP (1) EP3695595B1 (zh)
JP (1) JP7209706B2 (zh)
CN (1) CN111194546B (zh)
WO (1) WO2019072750A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019072750A1 (en) 2017-10-13 2019-04-18 Lumileds Holding B.V. DRIVING VIDEO RECORDER FOR AUTOMOBILE
CN116149116B (zh) * 2023-04-18 2023-08-01 江西联创电子有限公司 一种镜头结构、摄像模组及电子设备

Citations (2)

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EP3457208A1 (en) * 2017-09-13 2019-03-20 Vroxtechnology B.V. Device for recording a three-dimensional environment

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EP3457208A1 (en) * 2017-09-13 2019-03-20 Vroxtechnology B.V. Device for recording a three-dimensional environment

Also Published As

Publication number Publication date
US20210200068A1 (en) 2021-07-01
EP3695595A1 (en) 2020-08-19
CN111194546B (zh) 2022-06-07
US11720001B2 (en) 2023-08-08
CN111194546A (zh) 2020-05-22
JP7209706B2 (ja) 2023-01-20
JP2020537409A (ja) 2020-12-17
WO2019072750A1 (en) 2019-04-18

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